Morton

Morton is the 2nd oldest Koopaling, but unfortunately he's adopted. But to Morton being adopted isn't bad at all, his real father was a drug addict, and abandoned Morton when he was 4, so when Morton went to the Koopa family, he felt like he was actually wanted.

Morton is friends with Lemmy, Iggy, Wendy, and Petey, in general. Lemmy and Morton love to play ball and eat together. Iggy enjoys having Morton around to feed the fishes (actual fishes). Wendy likes Morton because most of the time he agrees with her. And Petey and Morton are pretty dumb, so they try out stupid things that the rest of his family wouldn't.

Morton's favorite food is chicken, because he has the appetite of a barbarian, and it gives him the strength to defend Lemmy and Iggy from Roy and other bullies.